feat: add OpenAI OAuth, strict model overrides, and Gmail pull mode

src/frontends/tui/minimal.test.ts

@@ -118,4 +118,57 @@ describe('MinimalTui backend command', () => {
     expect(mockRouter.setTier).toHaveBeenCalledWith('local');
     expect(mockAgent.setModelTier).toHaveBeenCalledWith('local');
   });
+
+  it('reuses configured provider credentials for /model <tier> <provider/model>', () => {
+    const prevOpenRouterKey = process.env.OPENROUTER_API_KEY;
+    delete process.env.OPENROUTER_API_KEY;
+
+    try {
+      const mockSession = {
+        id: 'test',
+        getHistory: () => [],
+        addMessage: vi.fn(),
+        clear: vi.fn(),
+        replaceHistory: vi.fn(),
+      };
+
+      const mockRouter = {
+        getTier: () => 'default' as const,
+        getAvailableTiers: () => ['default', 'local'],
+        setTier: vi.fn(() => true),
+        getLocalProviderName: () => 'ollama',
+        setLocalClient: vi.fn(),
+        setClient: vi.fn(),
+        setTierStrict: vi.fn(),
+        chat: vi.fn(),
+        getClient: vi.fn(),
+      };
+
+      const tui = new MinimalTui({
+        session: mockSession as any,
+        modelClient: mockRouter as any,
+        modelRouter: mockRouter as any,
+        systemPrompt: 'test',
+        modelProviderConfigs: {
+          openrouter: {
+            provider: 'openrouter',
+            model: 'seed-model',
+            api_key: 'test-key',
+            endpoint: 'https://openrouter.ai/api/v1',
+          },
+        },
+      });
+
+      (tui as any).handleModelCommand('default', 'openrouter/deepseek/deepseek-chat');
+
+      expect(mockRouter.setClient).toHaveBeenCalledOnce();
+      expect(mockRouter.setTierStrict).toHaveBeenCalledWith('default', true);
+    } finally {
+      if (prevOpenRouterKey) {
+        process.env.OPENROUTER_API_KEY = prevOpenRouterKey;
+      } else {
+        delete process.env.OPENROUTER_API_KEY;
+      }
+    }
+  });
 });